Authors: A.D. Vdovenko, M.S. Nikitenko, M.V. Pimonov, A.S. Sivushkin

Title of the article: Experimental investigation of FDM printing parameters on polymer specimen mechanical properties

Year: 2025, Issue: 5, Pages: 42-50

Branch of knowledge: 2.5.6. Engineering technology

Index UDK: 620.172

DOI: 10.26730/1999-4125-2025-5-42-50

Abstract: In mechanical engineering, especially in the conditions of small-scale and unique production, as well as in the creation of complex geometric shapes of functional parts, additive technologies are becoming a cost-effective alternative to traditional methods. The relevance of the work is that, due to the features of the layered structure and the anisotropy of the properties of additively manufactured components, the issues of the strength characteristics of such products require careful analysis, since their behavior under the influence of mechanical loads can differ significantly from the properties of traditional materials. The work is devoted to the analysis of the results of destructive testing of the strength and ductility of experimental polymer specimens, produced by the additive method of FDM-printing with specified parameters, and to the evaluation of the influence of technological printing parameters on the mechanical properties of the specimens. A comparative analysis of the modulus of elasticity, yield strength, tensile strength, and relative elongation of standard and topology-optimized specimens made from PETG and PLA plastics was conducted. The influence of the type of plastic, technological parameters of FDM-printing, such as infill density and infill pattern, on the mechanical characteristics of the polymer specimens was established. Recommendations for the design and manufacturing of functional parts operating under tensile loading conditions were developed. The work presents the results of a comprehensive study aimed at assessing the strength characteristics of additively manufactured specimens by the FDM method, with minimization of mass, material, and production costs, taking into account the specifics and variety of plastic, as well as the optimization of 3D-printing parameters. The results allowed us to formulate recommendations for selecting printing parameters for creating functional prototypes and final products operating under mechanical loads.

Key words: stress-related characteristics polymer materials FDM additive technologies 3D printing strength elasticity static load tensile load

Receiving date: 11.09.2025

Approval date: 22.09.2025

Publication date: 23.10.2025

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